NCY Cylinder Kit (Aluminum, 61mm, 171cc); Genuine/GY6
NCY 171cc Big Bore Kit (61mm) – No Case-Cut for GY6 150
$164.24
10 in stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
Orders placed by 1pm EST on weekdays ship the same day.
Product Details
Description
NCY Aluminum Big Bore Kit – 171cc (61mm) – No Case-Cut – GY6
Key Details
- 171cc
Replacement Part Details
Use this part when the original component is worn, damaged, missing, or no longer working correctly. Many scooter parts can look similar but use different sizes, plugs, brackets, thread patterns, or mounting styles, so careful comparison before purchase is recommended.
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: GY6
- Fitment Notes: Big Bore
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Is this for GY6 scooters?
A: This SKU is listed with GY6 engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 5.187 lbs |
|---|---|
| Dimensions | 11 × 6 × 6 in |
| Condition | New |
|---|
NCY 171cc Big Bore Kit (61mm) – No Case-Cut for GY6 150
The NCY 61mm Cylinder Kit is the only 171cc upgrade available in the U.S., designed to fit without machining your engine cases. Featuring a specialized 62.9mm outer skirt, this aluminum cylinder drops directly into standard GY6 150cc blocks. It is the ultimate "weekend project" for riders demanding a massive jump in torque and acceleration without the need for professional machine shop services.
The NCY Performance Advantage
- True Bolt-On Engineering: Slim-skirt design eliminates the need to "split the cases" or grind the engine block for clearance.
- Advanced Thermal Cooling: All-aluminum construction dissipates heat significantly faster than stock cast-iron cylinders, preventing power fade during long-distance riding.
- High-RPM Piston: Includes a specialized "short-skirt" racing piston to reduce reciprocating mass, allowing for faster revving and higher top-end potential.
- Comprehensive Kit: Includes cylinder, piston, rings, wrist pin, clips, and performance gaskets.
Detailed Model Fitment
| Category | Compatible Models / Codes |
|---|---|
| Genuine Scooter Co. | Buddy 125, Buddy 150, Buddy 170i, Hooligan 170i, Blur 150 |
| Go-Karts / Buggies | Hammerhead 150, Trailmaster 150 (all variants), Yerf-Dog, Carter Talon |
| Chinese GY6 Brands | TaoTao, Wolf, Ice Bear, Bintelli, Peace Sports, ZNEN, SSR, Kymco |
| Engine Codes | 157QMJ, 1P57QMJ, 152QMI, 161QMK, BN157QMJ, BN161QMK-A |
Technical Specifications
- Displacement: 171.3cc (61mm Bore)
- Outer Skirt Diameter: 62.99mm (Direct Fit)
- Material: High-Grade Aluminum
- SKU: 1100-1288
This product is not intended for use on public roads or land.
This product is not legal for use in California on pollution-controlled vehicles. Check local laws before installation.
